WildIgnore

This very simple addon will allow you to use the "/ignore %t" command to ignore your current target without having to try to figure out how to type all those special characters that most players use in their name.

Also, some people in raids/parties don't type anything at all via the in-game chat, yet give enough reasons to get ignored, so the only way to ignore them is by using the /ignore command (especially with such people who have left the raid/party already).